CN105502195B - Crane and its trolley and lifting mechanism - Google Patents

Crane and its trolley and lifting mechanism Download PDF

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Publication number
CN105502195B
CN105502195B CN201610068260.1A CN201610068260A CN105502195B CN 105502195 B CN105502195 B CN 105502195B CN 201610068260 A CN201610068260 A CN 201610068260A CN 105502195 B CN105502195 B CN 105502195B
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China
Prior art keywords
fixed pulley
same direction
pulley
fixed
lifting hook
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CN105502195A (en
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王历鑫
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王历鑫
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00Portable or mobile lifting or hauling appliances
    • B66D3/04Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
    • B66D3/06Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage with more than one pulley
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C11/00Trolleys or crabs, e.g. operating above runways
    • B66C11/16Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00Portable or mobile lifting or hauling appliances
    • B66D3/04Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
    • B66D3/06Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage with more than one pulley
    • B66D3/08Arrangements of sheaves

Abstract

The invention discloses a kind of crane and its trolley and lifting mechanism, wherein lifting mechanism, including the lifting hook pulley group and the first fixed pulley group, the second fixed pulley group for connecting crane hook, first fixed pulley group, the second fixed pulley group time interval are set, formed with allowing bit space between first fixed pulley group, the second fixed pulley group, the opening position for allow bit space when lifting hook pulley group is moved from bottom to top, enabling lifting hook pulley group to move between the first fixed pulley group, the second fixed pulley group.The present invention is because the first fixed pulley group, the second fixed pulley group time interval are set and between the two formed with allowing bit space, the opening position for enabling lifting hook pulley group to move between the first fixed pulley group, the second fixed pulley group.The lifting mechanism of the lower section of fixed pulley group can only be moved upward to relative to lifting hook pulley group, the limiting altitude of lifting altitude is also improved.

Description

Crane and its trolley and lifting mechanism
Technical field
The present invention relates to hoisting machinery technical field, and in particular to a kind of crane and its trolley and lifting mechanism.
Background technology
Crane mainly has bridge crane and gantry crane, and bridge crane is applied in factory building more, and gate-type rises Heavy-duty machine applies the occasion in outdoor more.Crane generally comprises cart and dolly, and cart is provided with the track for trolley travelling, small Car includes trolley frame, which is provided with the lifting mechanism for handling weight.Lifting mechanism is utilized on hoisting drum more and wound The mode of steel wire rope, in addition to a certain amount of movable and fixed pulley group, also there is lifting mechanism using chain-type.
Chinese patent CN201729618U(Authorized announcement date is 2011.02.02)Disclose a kind of fixed pulley beam of bridge machine Component, it includes fixed pulley beam, fixed pulley group, running block, and running block passes through steel wire rope and fixed pulley group active link.It is dynamic Assembly pulley is located at the underface of fixed pulley group, the maximum height that can rise of running block also will not height fixed pulley group most Low spot, due to the presence of pulley beam, running block is impossible to the position risen to more than pulley beam lower surface.This assembly pulley Arrangement can reduce the raising limiting altitude of crane.
The content of the invention
It is an object of the invention to provide a kind of lifting mechanism, to solve the movable and fixed pulley group using existing lifting mechanism Arrangement so that the relatively low technical problem of the raising limiting altitude of crane.A kind of use of the present invention also offer simultaneously should The trolley and crane of lifting mechanism.
In order to realize the above object the technical scheme of lifting mechanism is as follows in the present invention:Lifting mechanism, including for connecting Lifting hook pulley group and the first fixed pulley group, the second fixed pulley group of crane hook, before the first fixed pulley group, the second fixed pulley group After be arranged at intervals, it is described to allow bit space in lifting hook pulley formed with allowing bit space between the first fixed pulley group, the second fixed pulley group When group is moved from bottom to top, the opening position that enables lifting hook pulley group to move between the first fixed pulley group, the second fixed pulley group.
First fixed pulley group includes the first fixed pulley in the same direction, the second fixed pulley in the same direction being coaxially disposed, the second fixed pulley group Including the 3rd fixed pulley in the same direction, the 4th fixed pulley in the same direction and commutation fixed pulley, the 3rd fixed pulley in the same direction, the 4th fixed pulley in the same direction are same Axle is set, and the pivot center of the pivot center for the fixed pulley that commutates and the 3rd fixed pulley in the same direction is vertically arranged, and lifting hook pulley group includes The first lifting hook pulley, the second lifting hook pulley being coaxially disposed, the first fixed pulley, the 3rd fixed pulley in the same direction and the first suspension hook in the same direction are slided The pivot center of wheel is parallel to each other, and when in use, corresponding matching used steel wire rope or chain twine the lifting mechanism successively It is wound on the first fixed pulley in the same direction, the first lifting hook pulley, the second fixed pulley in the same direction, commutation fixed pulley, the 4th fixed pulley in the same direction, second On lifting hook pulley, the second fixed pulley in the same direction.
First fixed pulley in the same direction, the second fixed pulley in the same direction, the 3rd fixed pulley in the same direction, the 4th fixed pulley in the same direction, commutation Fixed pulley, the first lifting hook pulley and the second lifting hook pulley apply to the sprocket wheel of chain winding, and the lifting mechanism also includes Raising fixed frame, first fixed pulley in the same direction, the second fixed pulley in the same direction, the 3rd fixed pulley in the same direction, the 4th fixed pulley in the same direction And commutation fixed pulley is arranged in the raising fixed frame, the raising fixed frame has the installation cavity of up/down perforation.
The lifting mechanism also includes chain, and one end of the chain is the fixing end being connected on raising fixed frame, The other end is driving movable end, and the fixing end of chain is fixed on raising fixed frame by the drawing sensor that overloads.
Trolley of the present invention adopts the following technical scheme that:Trolley includes travelling mechanism and lifting mechanism, described Rising mechanism includes being used for the lifting hook pulley group and the first fixed pulley group, the second fixed pulley group for connecting crane hook, and first is fixed sliding Wheel group, the second fixed pulley group time interval are set, formed with allowing bit space between the first fixed pulley group, the second fixed pulley group, institute State and allow bit space when lifting hook pulley group is moved from bottom to top, lifting hook pulley group is moved to the first fixed pulley group, second Opening position between fixed pulley group.
First fixed pulley group includes the first fixed pulley in the same direction, the second fixed pulley in the same direction being coaxially disposed, the second fixed pulley group Including the 3rd fixed pulley in the same direction, the 4th fixed pulley in the same direction and commutation fixed pulley, the 3rd fixed pulley in the same direction, the 4th fixed pulley in the same direction are same Axle is set, and the pivot center of the pivot center for the fixed pulley that commutates and the 3rd fixed pulley in the same direction is vertically arranged, and lifting hook pulley group includes The first lifting hook pulley, the second lifting hook pulley being coaxially disposed, the first fixed pulley, the 3rd fixed pulley in the same direction and the first suspension hook in the same direction are slided The pivot center of wheel is parallel to each other, and when in use, corresponding matching used steel wire rope or chain twine the lifting mechanism successively It is wound on the first fixed pulley in the same direction, the first lifting hook pulley, the second fixed pulley in the same direction, commutation fixed pulley, the 4th fixed pulley in the same direction, second On lifting hook pulley, the second fixed pulley in the same direction.
First fixed pulley in the same direction, the second fixed pulley in the same direction, the 3rd fixed pulley in the same direction, the 4th fixed pulley in the same direction, commutation Fixed pulley, the first lifting hook pulley and the second lifting hook pulley apply to the sprocket wheel of chain winding, and the lifting mechanism also includes Raising fixed frame, first fixed pulley in the same direction, the second fixed pulley in the same direction, the 3rd fixed pulley in the same direction, the 4th fixed pulley in the same direction And commutation fixed pulley is arranged in the raising fixed frame, the raising fixed frame has the installation cavity of up/down perforation.
Crane of the present invention adopts the following technical scheme that crane includes trolley, and trolley includes travelling mechanism And lifting mechanism, the lifting mechanism include being used for lifting hook pulley group and the first fixed pulley group, second for connecting crane hook Fixed pulley group, the first fixed pulley group, the second fixed pulley group time interval are set, between the first fixed pulley group, the second fixed pulley group It is described to allow bit space when lifting hook pulley group is moved from bottom to top, lifting hook pulley group is moved to formed with allowing bit space Opening position between first fixed pulley group, the second fixed pulley group.
First fixed pulley group includes the first fixed pulley in the same direction, the second fixed pulley in the same direction being coaxially disposed, the second fixed pulley group Including the 3rd fixed pulley in the same direction, the 4th fixed pulley in the same direction and commutation fixed pulley, the 3rd fixed pulley in the same direction, the 4th fixed pulley in the same direction are same Axle is set, and the pivot center of the pivot center for the fixed pulley that commutates and the 3rd fixed pulley in the same direction is vertically arranged, and lifting hook pulley group includes The first lifting hook pulley, the second lifting hook pulley being coaxially disposed, the first fixed pulley, the 3rd fixed pulley in the same direction and the first suspension hook in the same direction are slided The pivot center of wheel is parallel to each other, and when in use, corresponding matching used steel wire rope or chain twine the lifting mechanism successively It is wound on the first fixed pulley in the same direction, the first lifting hook pulley, the second fixed pulley in the same direction, commutation fixed pulley, the 4th fixed pulley in the same direction, second On lifting hook pulley, the second fixed pulley in the same direction.
First fixed pulley in the same direction, the second fixed pulley in the same direction, the 3rd fixed pulley in the same direction, the 4th fixed pulley in the same direction, commutation Fixed pulley, the first lifting hook pulley and the second lifting hook pulley apply to the sprocket wheel of chain winding, and the lifting mechanism also includes Raising fixed frame, first fixed pulley in the same direction, the second fixed pulley in the same direction, the 3rd fixed pulley in the same direction, the 4th fixed pulley in the same direction And commutation fixed pulley is arranged in the raising fixed frame, the raising fixed frame has the installation cavity of up/down perforation.
Beneficial effects of the present invention:The lifting mechanism of the present invention is by the first fixed pulley group, the second fixed pulley group time interval Set, between the two formed with allowing bit space, when lifting hook pulley group is moved from bottom to top, because this allows the presence of bit space, The opening position for enabling lifting hook pulley group to move between the first fixed pulley group, the second fixed pulley group.Relative to existing suspension hook Assembly pulley can only move upward to the lifting mechanism of the lower section of fixed pulley group, the raising of the lifting mechanism of lifting mechanism of the invention The limiting altitude of height is also high.
Brief description of the drawings
Fig. 1 is the structural representation of embodiments of the invention;
Fig. 2 is Fig. 1 sectional view(The cross-sectional structure of girder);
Fig. 3 is that two-shipper merges the schematic diagram used(Double trolley uses simultaneously);
Fig. 4 is the structural representation of the girder in Fig. 2;
Fig. 5 is the structural representation of the assembly pulley in Fig. 1;
Fig. 6 is Fig. 5 dimensional structure diagram;
Fig. 7 is the structural representation of the travelling mechanism in Fig. 1;
Fig. 8 is the structural representation of the lifting mechanism in Fig. 1;
Fig. 9 is the structural representation of the raising fixed frame in Fig. 8;
Figure 10 is the structural representation of the driving group in Fig. 8;
Figure 11 is the structural representation of the chain guides in Fig. 8;
Figure 12 is Figure 10 sectional view;
Figure 13 is the structural representation of the driving wheel in Figure 12;
Figure 14 is the structural representation of the drive shaft in Figure 12;
Figure 15 is the schematic diagram for the limit height that lifting mechanism can reach.
Embodiment
The embodiment of crane of the present invention:As shown in figures 1-15, crane, including length direction along the longitudinal direction extend Girder 2, guiding movement are assemblied in trolley 4 on girder 2.The rear and front end of girder 2 is provided with operation end carriage 1, runs end carriage 1 Run on the cart track 11 being arranged on accordingly in factory building, operation end carriage 1 is driven by left and right operation motor 12.Run end carriage It is provided with end carriage electric box 13.Girder 2 is in box-structure, including lower cover 25, the first web 27 on lower cover 25, Two webs 24 and upper cover plate 26, the first web 27, the second web 24 be arranged in parallel and between upper cover plate 26 and lower cover 25. The inside of girder 2 is provided with inner reinforced plate.Lower cover 25 stretches out the first web 27, the second web 24 along its width(Left side is First web, right side are the second web 24, the first web of stretching to the left 27 of lower cover 25, stretch out the second web 24 to the right).Under Track girder is equipped with the web of stretching first of cover plate 25, the part of the second web, track girder includes what is extended along the longitudinal direction For supporting the track supporting plate 28 of Load-bearing rail and the spaced stiffener plate 29 along the length direction of track supporting plate 28. Three sides of stiffener plate 29 are welded to connect with track supporting plate 28, the second web 24 and lower cover 25 respectively.Load-bearing rail 23 are fixed in track supporting plate 28 and extend along the longitudinal direction.Track supporting plate 28 be arranged in parallel with lower cover 25.First abdomen Plate 27, the upper end of the second web 24 stretch out upper cover plate 26, and upper cover plate 26 is between the first web 27, the second web 24.
Trolley 4 includes travelling mechanism, lifting mechanism, and travelling mechanism includes vehicle wheel frame 42, load-carrying hanging plate 40, lifting machine Structure and travelling mechanism or so are arranged.The driving wheel of dolly is arranged in vehicle wheel frame 42, and driving wheel is run along Load-bearing rail 23.Wheel The front and rear operation motor 43 that the side of frame 42 is moved located at driving driving wheel, front and rear operation motor 43 extend in left-right direction.Carry Weight hanging plate 40 is arranged on the top of vehicle wheel frame 42, and load-carrying hanging plate 40 is bent plate, and bent plate includes riser 402 and transverse slat 401, transverse slat 401 Extend to girder side, transverse slat 401 is provided with guide and limit mechanism, and guide and limit mechanism prolongs along the vertical direction including pivot center The directive wheel 41 stretched, directive wheel 41 have two time intervals to set.The upward stretching upper cover plate of first web 27, the second web 24 Position limiting structure corresponding to 26 part formation, the part that the second web 24 stretches out is designated as 241.Pass through position limiting structure and directive wheel 41 Guide and limit coordinate, trolley 4 is operated steadily, and can prevent trolley 4 from turning on one's side in the process of running, depart from master Beam 2.
On riser 402, lifting mechanism includes raising fixed frame 46, raising fixed frame 46 for lifting mechanism releasable connection Interior to be provided with assembly pulley, the outside of raising fixed frame 46 sets lifting motor 47, electric control unit.Riser 402, which is provided with, to be carried Weight hanging hole 403, the side towards riser 402 of raising fixed frame 46, which is provided with, to be used to buckle the extension in load-carrying hanging hole 403 Hook 461, raising fixed frame 46 are fastened by bolts after buckling on riser 402, in hook 461 on raising fixed frame 46 Lower section be provided with the bolt hole 462 penetrated for bolt.Corresponding position on riser 402 is also equipped with corresponding bolt penetration hole. Raising fixed frame 46 has the installation cavity of up/down perforation, and assembly pulley includes the first fixed pulley group, the second fixed pulley group and hung Hook assembly pulley.First fixed pulley group includes the first fixed pulley 53 in the same direction, the second fixed pulley 52 in the same direction being coaxially disposed, and second is fixed sliding Wheel group includes the 3rd fixed pulley 55, the 4th fixed pulley 56 in the same direction and commutation fixed pulley 57 in the same direction, the 3rd fixed pulley the 55, the 4th in the same direction Fixed pulley 56 in the same direction is coaxially disposed, and the pivot center of the pivot center for the fixed pulley that commutates and the 3rd fixed pulley in the same direction is vertically arranged. Lifting hook pulley group includes lifting hook pulley frame, the first lifting hook pulley 59 being coaxially disposed, the second lifting hook pulley 58, on lifting hook pulley frame Main suspension hook 48 is installed.First fixed pulley group, the second fixed pulley group time interval are set, the first fixed pulley group, the second fixed pulley Formed with allowing bit space between group.The rotation of first fixed pulley 53, the 3rd lifting hook pulley 59 of fixed pulley 55 and first in the same direction in the same direction Axis is parallel to each other, and the first fixed pulley 53 in the same direction, the pivot center of the 3rd fixed pulley 55 in the same direction are located at sustained height, and first is fixed sliding Wheel group, the second fixed pulley group and the roughly triangular distribution of lifting hook pulley group.First fixed pulley 53, second in the same direction is fixed sliding in the same direction Wheel 52, the 3rd fixed pulley 55 in the same direction, the 4th fixed pulley 56, commutation fixed pulley 57, the first lifting hook pulley 59 and the second suspension hook in the same direction Pulley 58 applies to the sprocket wheel of chain winding, and sprocket wrap is provided with the key way engaged with chain.First fixed pulley in the same direction 53rd, the second fixed pulley 52 in the same direction, the 3rd fixed pulley 55, the 4th fixed pulley 56 in the same direction and commutation fixed pulley 57 in the same direction have been arranged at Rise in fixed frame 46, lifting hook pulley group belongs under running block and its normal operating condition and is located under raising fixed frame 46 Side.
The one end of chain 49 is fixing end, and the other end is driving movable end, and overload drawing is additionally provided with the fixing end of chain 49 Sensor 54, overload drawing sensor 54 are fixed on raising fixed frame 46.Set in the installation cavity body of raising fixed frame 46 There are chain guides 50, chain guides 50 are provided with chain cable fairlead 501, and chain cable fairlead 501 is used to guide chain 49 to enter guide chain mouth.Chain 49 Driving movable end is entered in driving group 51 after around each pulley, and the portion of chain having more, which is located at, is arranged on raising fixed frame In the appearance chain bag 44 of 46 lower sections.Being sensed around chain mode, one end and the overload drawing of chain 49 for lifting mechanism is specifically described below Device 54 is fixed together by wearing pin, the other end by the first fixed pulley 53 in the same direction downwards around to the first lifting hook pulley 59, then upwards Around to the 3rd fixed pulley 55 in the same direction, then downwards around to commutation fixed pulley 57, upwards about to the after commutation fixed pulley 57 is oriented to Four fixed pulleys 56 in the same direction, pass through the second lifting hook pulley 58 downwards by the 4th fixed pulley 56 in the same direction, then upwards about in the same direction to second Fixed pulley 52, the driving group 51 of chain is then extended parallel to from the second fixed pulley 52 in the same direction.Driving group 51 include shell 513, 511, two driving wheel 512, drive connection set 514, drive shaft and two bearings jump rings, the connection driving wheel of drive connection set 514 512nd, drive shaft 515, between connected by the form of spline, drive shaft 515 is driven by lifting motor 47.The lifting machine of the present invention When in use, for lifting hook pulley group when slinging the upward raising of weight, the first lifting hook pulley 59, the second lifting hook pulley 58 can for structure To be upwardly into allowing in bit space between first and second fixed pulley group, do not limited by raising fixed frame 46, lifting hook pulley Group is entered in the inner chamber of raising fixed frame 46, and the first lifting hook pulley 59, the pivot center of the second lifting hook pulley 58 almost may be used To reach the height and position of the pivot center of the first fixed pulley in the same direction so that lifting altitude is higher.
Side in first web 27, the second web 24 is provided with the hauling-chain frame 22 of Power Support drag chain, hauling-chain frame 22 with Dee is formed between corresponding web in first web 27, the second web 24.Hauling-chain frame 22 is formed by two-flap.
In the present embodiment, trolley has two and is located at the left and right sides of girder respectively, and the master of two trolleys hangs Balancing suspension hook is provided between hook 48, balancing suspension hook includes hook body 72 and equalizer bar 71, and the both ends of equalizer bar 71 connect respectively On the main suspension hook 48 of dolly.The both ends of equalizer bar 71 are respectively equipped with the first U-shaped card ring 73, the second U-shaped card ring 74.First is U-shaped Snap ring 73, the second U-shaped card ring 74 are buckled on corresponding small car owner's suspension hook.Balancing suspension hook can be combined into one in two lifting mechanisms When the bigger goods of hoisting weight.In the use of the present invention, can operate two lifting mechanisms respectively lifts different goods, Two lifting mechanisms can arbitrarily be exchanged through electrical equipment control, if a lifting mechanism breaks down wherein, can adjusted at any time The peace of enterprise by any influence of failure lifting mechanism, will not be ensured that into working condition with another lifting mechanism Full production.Two lifting mechanisms merge by electrical equipment control to be used, can be according to the size of institute's hanging object part in the flat lift of diverse location The bigger goods of weight, goods is hung to the height that other cranes are not reached.
In other embodiments, one in the first fixed pulley in the same direction and the second fixed pulley in the same direction also can be only set, equally Ground, the 3rd fixed pulley in the same direction, the 4th fixed pulley in the same direction are also provided with one of those, and first and second lifting hook pulley also can only set it In one.In other embodiments, all fixed pulleys and lifting hook pulley can be configured as being used in wirerope-winding, outer It is provided with the pulley structure of grooving week, while chain is substituted using steel wire rope.
The embodiment of lifting mechanism of the present invention, lifting mechanism is identical with the structure of the lifting mechanism in above-described embodiment, tool Body embodiment is no longer described in detail.
The embodiment of trolley of the present invention, the structure phase of trolley and the trolley in above-mentioned crane embodiment Together, embodiment is no longer described in detail.

Claims (7)

1. lifting mechanism, it is characterised in that:Including lifting hook pulley group and the first fixed pulley group, for connecting crane hook Two fixed pulley groups, the first fixed pulley group, the second fixed pulley group time interval set, the first fixed pulley group, the second fixed pulley group it Between formed with allowing bit space, it is described to allow bit space when lifting hook pulley group is moved from bottom to top, lifting hook pulley group is moved Opening position to the first fixed pulley group, the second fixed pulley group, the first fixed pulley group include being coaxially disposed first fixed in the same direction Pulley, the second fixed pulley in the same direction, the second fixed pulley group include the 3rd fixed pulley, the 4th fixed pulley in the same direction and commutation in the same direction and slided calmly Wheel, the 3rd fixed pulley in the same direction, the 4th fixed pulley in the same direction are coaxially disposed, the pivot center for the fixed pulley that commutates and the 3rd fixed pulley in the same direction Pivot center be vertically arranged, lifting hook pulley group includes the first lifting hook pulley, the second lifting hook pulley that are coaxially disposed, and first is in the same direction The pivot center of fixed pulley, the 3rd fixed pulley in the same direction and the first lifting hook pulley is parallel to each other, the lifting mechanism when in use, phase It is fixed sliding in the same direction that the matching used steel wire rope or chain answered are wrapped in the first fixed pulley in the same direction, the first lifting hook pulley, the 3rd successively Wheel, commutation fixed pulley, the 4th fixed pulley in the same direction, the second lifting hook pulley, on the second fixed pulley in the same direction, steel wire rope or chain are by the One fixed pulley in the same direction is downwards around to the first lifting hook pulley, then upwards about to the 3rd fixed pulley in the same direction, then still further below around to commutation Fixed pulley, around to the 4th fixed pulley in the same direction after the fixed pulley that commutates, slided by the 4th fixed pulley in the same direction by the second suspension hook downwards Wheel, then bypassed upwards about to the second fixed pulley in the same direction, steel wire rope or chain from the top of each fixed pulley in the same direction.
2. lifting mechanism according to claim 1, it is characterised in that:First fixed pulley in the same direction, second are fixed sliding in the same direction Wheel, the 3rd fixed pulley in the same direction, the 4th fixed pulley, commutation fixed pulley, the first lifting hook pulley and the second lifting hook pulley in the same direction are suitable For the sprocket wheel of chain winding, the lifting mechanism also includes raising fixed frame, first fixed pulley in the same direction, second in the same direction Fixed pulley, the 3rd fixed pulley, the 4th fixed pulley in the same direction and commutation fixed pulley in the same direction are arranged in the raising fixed frame, institute Stating raising fixed frame has the installation cavity of up/down perforation.
3. lifting mechanism according to claim 2, it is characterised in that:The lifting mechanism also includes chain, the chain One end be the fixing end being connected on raising fixed frame, the other end is driving movable end, and the fixing end of chain passes through overload Drawing sensor is fixed on raising fixed frame.
4. trolley, including travelling mechanism and lifting mechanism, it is characterised in that:The lifting mechanism includes being used to connect lifting Lifting hook pulley group and the first fixed pulley group, the second fixed pulley group of machine suspension hook, between the first fixed pulley group, the second fixed pulley group are front and rear Formed with allowing bit space between setting, the first fixed pulley group, the second fixed pulley group, it is described allow bit space lifting hook pulley group by During lower motion upwards, the opening position that enables lifting hook pulley group to move between the first fixed pulley group, the second fixed pulley group, first Fixed pulley group includes the first fixed pulley in the same direction, the second fixed pulley in the same direction being coaxially disposed, and it is in the same direction that the second fixed pulley group includes the 3rd Fixed pulley, the 4th fixed pulley in the same direction and commutation fixed pulley, the 3rd fixed pulley in the same direction, the 4th fixed pulley in the same direction are coaxially disposed, and are commutated The pivot center of the pivot center of fixed pulley and the 3rd fixed pulley in the same direction is vertically arranged, and lifting hook pulley group includes the be coaxially disposed One lifting hook pulley, the second lifting hook pulley, the pivot center of the first fixed pulley in the same direction, the 3rd fixed pulley in the same direction and the first lifting hook pulley It is parallel to each other, when in use, it is in the same direction that corresponding matching used steel wire rope or chain are wrapped in first to the lifting mechanism successively Fixed pulley, the first lifting hook pulley, the 3rd fixed pulley in the same direction, commutation fixed pulley, the 4th fixed pulley in the same direction, the second lifting hook pulley, the On two fixed pulleys in the same direction, steel wire rope or chain by the first fixed pulley in the same direction downwards around to the first lifting hook pulley, then upwards about to 3rd fixed pulley in the same direction, then, around to the 4th fixed pulley in the same direction after the fixed pulley that commutates, pass through around to commutation fixed pulley still further below 4th fixed pulley in the same direction passes through the second lifting hook pulley downwards, then upwards about to the second fixed pulley in the same direction, steel wire rope or chain from The top of each fixed pulley in the same direction bypasses.
5. trolley according to claim 4, it is characterised in that:First fixed pulley in the same direction, second are fixed sliding in the same direction Wheel, the 3rd fixed pulley in the same direction, the 4th fixed pulley, commutation fixed pulley, the first lifting hook pulley and the second lifting hook pulley in the same direction are suitable For the sprocket wheel of chain winding, the lifting mechanism also includes raising fixed frame, first fixed pulley in the same direction, second in the same direction Fixed pulley, the 3rd fixed pulley, the 4th fixed pulley in the same direction and commutation fixed pulley in the same direction are arranged in the raising fixed frame, institute Stating raising fixed frame has the installation cavity of up/down perforation.
6. crane, including trolley, trolley includes travelling mechanism and lifting mechanism, it is characterised in that:The raising Mechanism includes being used for the lifting hook pulley group and the first fixed pulley group, the second fixed pulley group for connecting crane hook, the first fixed pulley Group, the second fixed pulley group time interval are set, described formed with allowing bit space between the first fixed pulley group, the second fixed pulley group Allow bit space when lifting hook pulley group is moved from bottom to top, lifting hook pulley group is moved to the first fixed pulley group, second fixed Opening position between assembly pulley, the first fixed pulley group include the first fixed pulley in the same direction, the second fixed pulley in the same direction being coaxially disposed, the Two fixed pulley groups include the 3rd fixed pulley in the same direction, the 4th fixed pulley in the same direction and commutation fixed pulley, the 3rd fixed pulley in the same direction, the 4th same It is coaxially disposed to fixed pulley, the pivot center of the pivot center for the fixed pulley that commutates and the 3rd fixed pulley in the same direction is vertically arranged, suspension hook Assembly pulley includes the first lifting hook pulley, the second lifting hook pulley that are coaxially disposed, the first fixed pulley in the same direction, the 3rd fixed pulley in the same direction and The pivot center of first lifting hook pulley is parallel to each other, the lifting mechanism when in use, corresponding matching used steel wire rope or Chain is wrapped in the first fixed pulley in the same direction, the first lifting hook pulley, the 3rd fixed pulley in the same direction, commutation fixed pulley, the 4th in the same direction successively Fixed pulley, the second lifting hook pulley, on the second fixed pulley in the same direction, steel wire rope or chain are by the first fixed pulley in the same direction downwards around to the One lifting hook pulley, then upwards about to the 3rd fixed pulley in the same direction, then still further below around to commutation fixed pulley, after the fixed pulley that commutates around To the 4th fixed pulley in the same direction, pass through the second lifting hook pulley downwards by the 4th fixed pulley in the same direction, then upwards about fixed in the same direction to second Pulley, steel wire rope or chain bypass from the top of each fixed pulley in the same direction.
7. crane according to claim 6, it is characterised in that:First fixed pulley in the same direction, the second fixed pulley in the same direction, 3rd fixed pulley in the same direction, the 4th fixed pulley, commutation fixed pulley, the first lifting hook pulley and the second lifting hook pulley in the same direction apply to The sprocket wheel of chain winding, the lifting mechanism also include raising fixed frame, the fixed cunning in the same direction of first fixed pulley in the same direction, second Wheel, the 3rd fixed pulley, the 4th fixed pulley in the same direction and commutation fixed pulley in the same direction are arranged in the raising fixed frame, described Rising fixed frame has the installation cavity of up/down perforation.
CN201610068260.1A 2016-02-01 2016-02-01 Crane and its trolley and lifting mechanism Active CN105502195B (en)

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